Stamp-actuating mechanism for ore-crushers.



PATENTED JAN. 30, 1906.

W. S. MQKINNEY.

STAMP AOTUATING MECHANISM FOR ORE ORUSHBRS.

APPLICATION FILED MAYZS, 1904.

3 SHEETS-SHEET 1 I WYTNESSES:

IN VENTOR PATENTED JAN. 30, 1906.

G MECHANISM FOR ORE GRUSHERS.

STAMP AGTUATIN Y E N N Tl m M S W APPLICATION FILED MAY 23 3SHEETS-SHEET 2.

WI 1 W SES- WW// W47 ZMK EATENTED JAN. 80, 1906.

APPLICATION FILED MAYZB, 1904.

3 SHBETSSHBET 3.

W117; SE5: W

WALTER SABIN MCKINNEY, OF CHICAGO, ILLINOIS.

STAMP-*ACTUATING MECHANISM FOR ORE-CRUSHERS.

Specification of Letters Patent.

Patented Jan. 30, 1906.

Application filed May 23, 1904. Serial No. 209,232.

To all whom it may concern.-

Be it known that I, WALTER SABIN MOKIN- NEY, a citizen of the UnitedStates, residing at Chicago, in the county of (look and State ofIllinois, have invented certain new and useful Improvements inStamp-Actuating Mechanisms for Ore-Crushers, of which the following is aspecification.

This invention relates to improvements in stamp-actuating mechanisms,and refers more specifically to an improved mechanism for regulating andadjusting the drop of the stamps.

Among the salient objects of the invention are to provide a constructionin which the necessity of readjusting the cam or tappet blocks upon thestamp-stems is dispensedwith; to provide a construction in which thetappetblocks retain fixed relation to the cam'stems upon which they aremounted, and means are provided for adjusting the cams relativelythereto as the stamps wear away or are replaced with dies of differentthickness; to provide a construction of the character referred to inwhich the adjustment of the cams may be made in a positive and simplemanner and simultaneously as to all of the members pertaining to onegroup; to provide a construction in which the adjustment of the membersdoes not disturb the driving relations of the driving elements; toprovide an improved frame construction which enables the actuating-motorto be mounted directly thereon, if preferred, and in general to providea simple and improved mechanism of the character referred to.

To the above ends the invention consists of the matters hereinafterdescribed, and more particularly pointed out in the appended claims, andthe invention will be readily understood from the following description,reference being had to the accompanying drawings, in which Figure 1 is aview principally in side elevation, but with parts in transversevertical section, of a mechanism embodying my invention. Fig. 2 is afront elevation of the same with one end of the mortar shown intransverse section to expose the stamps. Fig. 3 is a detail perspectiveView of one of the end shaft-supporting links. Fig. i is a centraltransverse vertical section of the machine, taken on a plane passingbetween the stamps and looking toward the engine.

Referring to the drawings, 1 designates as a whole a suitable foundationupon which is mounted a suitable main frame (designated as a whole 2)and comprising standards 3 4L 4, respectively, brace members 5,cross-bars 6, 7 and 8, and a bed-plate 9.

10 designates as a whole the mortar, which is arranged between thestandards 3 and 4 and may be of any usual or preferred construction.

11 designates a main driving-shaft suitably mounted upon the upperportion of the frame 2, said shaft forming in the present instance apart of the motor mechanism and being accordingly mounted upon abed-frame 12 of the engine, which latter is designated as a whole 13. Itwill be understood, however, that the main shaft may be directly mountedupon the main frame and the motor dispensed with. Upon said main shaft11 is rigidly mounted a driving-gear 14c and a fiy-wheel 15. The mainshaft, as best seen in Fig. 2, extends entirely across the width of themain frame and is supported at its end remote from the gear 14; by meansof a bearing-bracket 16, mounted upon the stem 3 and indicated in dottedlines in Fig. 1.

17 designates the stamp-stems, of which two are shown in the presentinstance arranged side by side and mounted to extend through suitableguide-apertures in the crossbars 6 and 7. Said stems, are arranged in aplane parallel with the main shaft 11, but at a considerable distancetherefrom and in a plane approximately coincident with the front planeof the main frame. Each stem is provided at a point approximatelyopposite the main shaft with a tappet-block 18, the tappetblock 18 beingformed in the particular instance illustrated as an enlargement on thelower end of the upper section of the stampstem, which is of two-partconstruction. It will be understood, however, that these tappetblocksmay be otherwise formed and mounted.

19 designates as a whole a cam-shaft which is mounted to extend parallelwith the main drive-shaft 11 and is supported adjacent to thestamp-stems by means of a pair of adjustable links 20, each journaled atone end upon or concentrically with the main drive-shaft 11. In thepreferred embodiment shown the links are journaled directly upon themain shaft at points adjacent to the standards 3 and i, respectively,and are provided at their swinging or opposite ends with enlargedjournalheads 21, through which the shaft 19 extends. The journal-head ofeach link is provided at one side with a pair of jaw-like extensions 22and 23, respectively, between which is formed an approximatelyrectangular recess 2t, adapted to confine an adjustingnut 25. (See Fig.3.) The jaws 22 and 23 are also provided with vertical recesses 26 and27 in register with each other, and through each extends anadjusting-screw 28, which threads through the adjusting-nut 25. Thelower end of each adjusting-screw is seated in a bearing 29, formingpart of a bracket 30, while at their upper ends said adjusting-screwsextend through journal-bearings 31, mounted upon the uprightframe-standards and carry at their ends beveled gears 32. The bevelgearsare keyed upon their respective adjusting-screws and rest at their lowersides directly upon the bearings 31. In order to actuate the adjListing-screws simultaneously and coequally, a cross-shaft 33 isjournaled in suitable bearings 34: to extend across the front of themain frame and is provided with mitergears 35, which engage therespective gears of the adjusting-screws. In the particular instanceshown the pairs of miter-gears are arranged in opposed relation, so thatthe gear force will be counterbalanced, and in order that theadjusting-screws may move the links 20 simultaneously in the samedirection with this arrangement, the latter are reversely threaded.

Upon the end of the shaft 33 is suitably mounted a crank-handle 36, andin order that the shaft may be locked in any position of adjustment itis provided with a ratchet-wheel 37, with which is arranged to operate agravity-pawl 38, mounted upon the adjacent framestandard, as clearlyshown in Fig. 1.

The cam-shaft 19 is provided with the usual cams 39, rigidly mountedthereon adjacent to the respective cam-stems and driven by a gear 19,meshing with gear 14.

In the particular instance illustrated I have shown a compressed-airmotor 13 as mounted upon the bed-plate 12, the piston-stem 13 thereofbeing connected with the main shaft by means of suitable pitman andcrank connections.

In the particular stamp-stems illustrated the tappet-block 18, formed asan enlargement upon the lower end of the upper sec tion, is providedwith a tapered socket 18, which fits upon the correspondingly-taperedupper end of the lower stamp-stem section. The wedging engagementbetween these two parts is depended upon to secure them together andenable the lower stamp-stem section and stamp-head thereon to be liftedby the tappet-block 18. The stamp-head as a whole comprises a boss-head4:0 and shoe 4:1. The stamp-head cooperates with the usual die 42,seated in the bottom of the mortar.

The operation of the mechanism constructed as described is probablyentirely obvious from the foregoing description; but it may be not-edthat in adjusting the cam-shaft the supportinglinks which carry theshaft obviously maintain the driving-gear 19 in uniform mesh with thedrive-gear 1 1, regardless of the angular position of adjustment of thelinks relatively to the main shaft. It will be obvious that as theacting-faces of the shoe and die wear away the tappet-block 18 willgradually descend lower and lower, and this would of course finallycarry the tappet-block out of proper relation to the cam were itimpossible to adjust the position of the latter.

I claim as my invention 1. In a stamp-actuating mechanism,thecombination of a driving-gear, a cam-shaft, a cam upon said shaft,driving connections between the driving-gear and cam-shaft, and supportsadjustably supporting said cam-shaft to move bodily in an arc concentricwith the axis of the driving-gear.

2. In a stamp-actuating mechanism,the combination of a driving-gear, acam-shaft, a gear and cam upon said shaft, said latter gear arranged tomesh with the driving-gear, linksupports adjustably supportingsaidcam-shaft to move bodily in an arc concentric with the axis of thedriving-gear, and a stamp-stem carrying a tappet mounted adjacent tosaid cam-shaft.

3. In a stamp-actuating mechanism, the combination of a main shaft anddriving-gear thereon, a cam-shaft arranged to extend parallel with themain shaft, a gear and cam on said cam-shaft, said latter gear arrangedto intermesh with the gear of the main shaft,- links pivotally supportedconcentrically with the main shaft and supporting at their swinging endsthe camshaft, adjusting devices operatively connected with said links,and a stamp-stem provided with a tappet, arranged to reciprocateadjacent to said cam-shaft.

a. In a stamp-actuating mechanism, the combination of a main shaft anddriving-gear thereon, a cam-shaft arranged to extend parallel with themain shaft, a gear and cam on said cam-shaft, said latter gear arrangedto intermesh with the gear of the main shaft, links pivotally supportedconcentrically with the main shaft and supporting at their swinging endsthe cam-shaft, vertically-disposed adjusting-screws operativelyconnected with the ends of the links, and a stamp-stem provided with atappet, arranged to reciprocate vertically adjacent to said cam=shaft.

5. In astamp-actuating mechanism,the combination of a main shaft anddrivinggear thereon, a cam-shaft arranged to extend parallel with themain shaft, a gear and cam on said cam-shaft, said latter gear arrangedto intermesh with the gear of the main shaft, links pivotally supportedconcentrically with the main shaft and supporting at their swinging endsthe cam-shaft, vertically-disposed adjusting-screws operativelyconnected with the ends of the links, agear upon each adjustingscrew, across-shaft arranged to extend transversely of said adjusting-screws,gears upon said cross-shaft operatively engaging the gears of therespective adjusting-screws, and means for locking said cross-shaft inadjusted position.

6. In a stamp-actuating mechanism, the comloination of a suitable mainframe comprising three upright standards and a bed-plate connected toand extending between two of said standards, a motor mounted upon saidbedplate, amain drive-shaft operatively connected with the motor, andjournaled to extend across the central standard and the standard remotefrom the bed-plate, a driving-gear upon said main shaft, a pair of linksmounted to oscillate upon said main shaft at points adjacent to theintermediate standard and the standard remote from the bed-platerespectively, a camshaft journaled in the outer ends of said links toextend parallel with the main shaft, vertical adjusting-screws supportedupon said standards in vertical register with the supporting-links andhaving screw-threaded engagement with the latter, a miter-gear upon eachadjusting-screw, a cross-shaft provided with miter-gears engaging therespective gears of the adjusting-screws, a ratchet-and-pawl mechanismfor locking said cross-shaft in adjusted position, a driven gear uponsaid camshaft intermeshing with the gear of the main shaft, a pluralityof cams upon said cam-shaft, and a plurality of stamp-stems supported toreciprocate vertically adjacent to the camshaft.

WALTER SABIN MCKINNEY. Witnesses:

ALBERT H. GRAvns, FREDERICK C. GooDWIN.

